FILTERING METHOD AND FILTER CONSISTING OF NITROGEN-CONTAINING CYCLES OR HETEROCYLES SUCH AS DNA OR RNA DESIGNED IN PARTICULAR FOR FILTERING TOBACCO SMOKE AND CIGARETTE CONTAINING SUCH A FILTER

摘要

The method concerns a method for general use and more particularly used for tobacco products. The method uses in particular nitrogen-containing heterocycles such as DNA and RNA bases and complementarily polymer fibres. Said molecules and said fibres can be partly halogenated, or in halogenated salt media. The halogen is preferably fluorine. Fluorine may be added or may be in the form of a medium of fluorinated salts such as NaF, KF, Na2PO3F. The filtering acts against the formation of human intracellular DNA or RNA adducts, while preserving the nicotine and the tobacco aromas.